Rotary steam-motor



3 Sheets-Sheet 1.

T. WISE. ROTARY STEAM MOTOR.

Patelggad Aug.

{ No Model.)

N PETERS, Pmwmhugmpncn wxsnmglon, ILC,

(No Modem 3 Sheets-Sheet 2. T. WISE. ROTARY STEAM MOTOR.

Patented Aug ery tubes.

THOMAS YISE, OF FRAMINGHAM, MASSACHUSETTS.

ROTARY STEAM-Moron.

LXPECIEIGATON forming part of Leners Parent No. 303,781, dated Angustia 1884.

Application tiled March 17, 1884. (X model.)

To @ZZ whom it'may concern:

Be it known that I, Tnonns "Wise, of Framinghaan7 in the county of Middlesex and Gommonwealth of Massachusetts, have invented a new and useful Improvement in Rotary Steam- Motors, of which the following is a specification.

The object of my invention is to provide a rotary steam motor which can be run with economy at a rate of speed as high may be required to run a circular saw, fan-blower, or other similar machine, on the same shaft or journal on which the motor is placed; and it consists in the devices hereinafter described,

and the combination and arrangement thereof.

To put my invention into practice I construct on a suit-able shaft or journal a metallic disk, with a series of pockets in its periphery extending entirely around it7 into one, two, or three, or more oi' which7 as they pass a point, I admit a jet or `iets of steam ihrough a pipe or pipes properly located/and directed, the delivering ends oi' which pass through a stationary cover, which closes one or more of the pockets while under it. For convenience, I usually maire the met-allie disk in two parts and put them together on the line In the drawings annexed, consisting of three sheets, Figure l. shows a vertical crossseetion,

of my improved steam-motor, its central shaft and supporters, and the inelosing ease in which the motor rotates. Fig. shows a side elevation oi' the steamlinotor, with the case in' dot-ted lines. Fig. 3 shows a crossseetion of the ease and an edge view of the steam-motor in it. Fig. 4 shows a vertical diametrical section of the steam-motor and an inside view of one side of its ease. Fig. 5 shows atop plan of the ease with a portion broken away, exposing a portion of the edge of the steam-motor. Fig. 6 on Sheet I shows a side view of the steanr chest, partly in section, with the steam-deliv- Fig. 7 shows a side view of the cover which closes the pockets in the periphery of the steam-motor as they pass under it when in motion,I and a steam-pipe through it delivering steam into the pocket in the periphery of the motor, shown in section. f

e is the shi it upon which the steam-motor is afiixed, and with which it revolves.

c isthe disk which constitutes the rotary -and lea-ve the motor free steam-motor, made of two parts, put together on the line Y f marks a series of pockets in and around the periphery of the steam-1notor, which eX- tend inwardly a distance equal to about oneeighth of the diameter of the motor, on a line oblique to a right line through the center ol the motor about forty-iive degrees.

as" a are annular lips on each side of the periphery of the motor a', which serve to partially cover the pockets ai, and to some extent prevent the escape of steam.

a" marks openings on both ysides of the `pockets a?, near the bottom of them, which are iitted with short tubes standing ohliquely to the plane of the motor at about thirty degrees, pointing in the direction opposite to the rotation of the motor.

ai is the metallic casein which the motor is inclosed. Itis a simple shell, the main purpose of it being to keep the steam used from spreading in the surrounding air. It has on both it inner sides a series of abutments for the stea n escaping from the pockets e through the tubes c* to i'mpinge against.

a marks the series oi" abutments on the iuside surfaces of the ease a, against which the steam escaping from the bottom of the pockets a2 through the tube openings a will impinge.

c7 is a stationary cover over a portion ofthe edge ol the periphery of the motor, between the lips o of the motor and over the outer edge of them, as close to the periphery of the motor and the pocket-openings as possible, to move under it without friction against it, and it extends over three or four pockets, closing the opening into them, so that but little steam will escape. This cover is supported in its place by Vshaped brackets, the inner ends ot' which rest on the central shaft of the motor, and which are made of the same metal as the motor, so that its expansion by heat of the steam will be the same as the expansion of the motor, thus vkeeping the cover al from contact with the motor as it rotates. Y

as marks thebrackets supporting the cover al.

e is a steampipe which conducts steam from a steamchest to and into the pockets a2. There may be several of these steam-pipes; but-in most eases one, two, or three will be found ICO snioient. The direction of these pipes will be such that the current of steam passing through them will impinge against the forward side of the pockets 'in such direction as not to rebound or react against the rear or back side ofthe pocket, but, on the contrary, having a tendency to make a vacuum between the j et of steam as it iiows into the pocket and the rear side of the pocket.

c is a steam-chest affixed to the case of the motor, into which steam is introduced from a boiler, and from which it iiows through the tubes a into the pockets a2.

c is a cover to an opening in the case for the motor, which, being removed, gives opportunity to inspect the steanrpipcs a", the cover al, and the edge of the disk and the pockets.

eL is a steanrpipe conducting steam from the boiler, where it is generated, to the steamchest c.

c3 is a valve in the steam-pipe e2.

The steam conductor or conductors from the steam-chest to the pockets in the motor, may be provided with valves by which to regulate or wholly cut off the steam from the pockets.

Vhen the steam-chest is charged with steam, the passage of it through the pipes a will, by its impact against the forward side of the pocket, cause the motor to rotate with greater or less rapidity, according to the quantity of steam used. .A moderate power may be obtained by one steam-conductor from the steamchest, and by the use of two or three conductors a greater power is produced, and also greater velocity of rotation is given to the motor.

The shaft of the motor may be coupled to the shaft of a circular saw, -or to the shaft of a fan-blower, and other similar machinery, or they may be put on the same shaft with the motor, or the power may be taken oft' by pulleys and belts or gearing, and used as circumstances may require.

I claim as new and my inventionl. The above described improved rotary steam-motor, consisting of a combination, with the shaft a and disk a', of the pockets a2, the annular lips a3, the steam-nozzles af, the abutments a, the cover al, and the steam-conductors a, all substantially as described, for the purposes set forth. 2. In a rotary steanrmotor, the disk a', provided with pockets a?, having steam-openings a", arranged as shown, in combination with lthe abutnients a, as set forth.

THOMAS VISE. Vi tn esses:

HENRY FENNo, AMORY J. KEBLER. 

